1161642 has 8 divisors (see below), whose sum is σ = 2323296. Its totient is φ = 387212.

The previous prime is 1161637. The next prime is 1161647. The reversal of 1161642 is 2461611.

It is an interprime number because it is at equal distance from previous prime (1161637) and next prime (1161647).

It is a sphenic number, since it is the product of 3 distinct primes.

1161642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1161647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96798 + ... + 96809.

It is an arithmetic number, because the mean of its divisors is an integer number (290412).

2^1161642 is an apocalyptic number.

1161642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161642 is a wasteful number, since it uses less digits than its factorization.

1161642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193612.

The product of its digits is 288, while the sum is 21.

The square root of 1161642 is about 1077.7949712260. The cubic root of 1161642 is about 105.1213110373.

The spelling of 1161642 in words is "one million, one hundred sixty-one thousand, six hundred forty-two".